I didn't see a thread for gas stations specifically that allow you to buy MVD OV etc. on a CC. Post locations where you had success. You can include other gas stations too, of course.
http://forums.dansdeals.com/index.php?topic=21024.msg690691#msg690691
Maybe we can all send the places a thank you card also. Everything should not be placed on a silver platter. While your intentions are good you are going about it the wrong way.